Create a scene by giving it a name. Then click on the scene and fill out the details you want to. Scene time, Description and Location.
Select cast members according to the scene. You can choose from the contacts you have created/imported in Team.
Attachments within scenes will also be shown on the callsheets under the scene and externally dowloadable. You also have the option of attaching a file while creating a callsheet. This will then be listed under attachments.